How can I set a property of a DropShadowEffect via a Trigger in a ControlTemplate?

Question

I have a Button ControlTemplate and I\'m trying to modify a DropShadowEffect on a Border by using a Trigger.

Answer 1

You can set the Effect as a whole in the setter.value

 <Setter Property="Margin" TargetName="ButtonBorder" Value="13,13,7,7" />
    <Setter Property="Effect" TargetName="ButtonBorder" >
      <Setter.Value>
         <DropShadowEffect ShadowDepth="2" />
      </Setter.Value>
    </Setter>
  </Trigger>